yea that dosnt leak i was riding it with seat off but cant see were its coming from ive check all the hoses an thier fine thier is alot of water comming in the bilge pump is always on its only started to do this two rides ago

the only reason why i suggested it is that once my gf didnt put the cap on tight on her ultra and it did exactly that.. filled up quick too. I was stumped until i rode it around with the seat off and saw it squirting out.

If its the driveshaft bearing seal, then yes you might not have to remove the motor completely, but you are going to have to remove the carbs/exhaust, and if you are that far, its only a few more steps to remove the entire motor, and that would make it easier to replace the bearing.

Remove the battery and 2 rear electrical boxes, jack the tongue of the trailer up as high as you can get it and fill the rear of the hull with water, then you should beable to see where it is coming from.